00337nam a2200133 a 450000500170000000800410001704100080005808200080006610000160007424500420009026400450013230000100017765000160018720260717091614.0260717s1986    ii            000 0 eng d  aeng04a5101 aLagu, R. G.14aThe joy of mathematics /cLagu, R. G. 1aDelhi :bOxford University Press,c1986.  a64 p. 4aMathematics